OK.....good job !!!!
Math error
12 * 9 = 108 km!!!
Note that every hour...the trains close the distance between them by [ 12 + 20 ] = 32 km
So.....the time until they meet = 72 / 32 = 18 / 8 = 9 /4 hrs
Since "Hyde" flies constantly during this time....the distance he covers is
Rate * Time = Distance
48 * (9/4) =
(48/4) * 9 =
12 * 9 =
108 km
CORRECTED....!!!!
l 2x - 1 l = l 3x + 5 l
We have two equations
2x - 1 = 3x + 5 2x - 1 = - (3x + 5)
subtract 5 , 2x from both sides 2x - 1 = - 3x - 5
-6 = x add 5, subtract 2x to/from both sides
4 = - 5x
divide both sides by -5
-4/5 = x
-6, -4/5 ⇒ the answers
THX, NoobGuest....!!!
(m + 5)^2 + (m - 5)^2 + m^2 + 5^2 = 318 simplify
m^2 +10m + 25 + m^2 - 10m + 25 + m^2 + 25 = 318
3m^2 + 75 = 318 subtract 75 from both sides
3m^2 = 243 divide both sides by 3
m^2 = 81 take the positive square root
m = √81
m = 9
"At least 21" means that x ≥ 21
Which graph is correct ???
Exactly!!!
So now.....just add the areas
I believe that your answer is correct, Nick....
